Machine for sealing caps to jars and cans



0t- 25" 1927 s. N. TEVANDER MACHINE FOR SEALING CAPS TO JARS AND CANS Filed March 17, 1923 l 33 Z Y @cf @we 5m 25 i927 ,5. N. TEVANDER 19 s MACHINE FOR SEALING CAPS T0 JARS AND CANS Filed March 1'?. 192s s sheets-sheet? .mu-nag.

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s. N. 'rEvANnER MACHINE FR SEALING CAPS TO`J`ARS AND CANS Filed March 17, 1923 SSheets-Shoet 3 1419.6. VZW,

Patented Oa. 25, 1927.

UNITED STATI-:s

j 1,646,504 KPATENT OFFICE.

SWAN NILS TEVANDER, F MAYWOOD, ILLINOIS, ASSIGNOR T0 SWAN METALLIC SEAL 4@a CAP COMPANY, A CORPORATION OF ILLINOIS.

MACHINE FOR SEALI-NG CAPS T0 JARS AND CAN S.

Application led March 17, 1923. Serial 1j( o. 625,832.

" The object of my invention is to produce a very efiicient machine for aixing caps to fruit jars and fruit cans or other jars and cans used for almost any purpose wherein a tight seal is'desired.

The machine is designed vto operate upon a peculiarly constructed cap made out of metal or other suitable material and tix the same over the mouth of a jar, glass orcan without IU ,necessarily disturbing the body of the jar, glass, or can and do this by a manipulation on the skirt or flange of the cap.

' Reference will be had to the accompanying drawings in which Fig. 1 1s an elevational View partly in section of the machine in a position that of the completion of the operation of the cap sealed to a jar. Fig. 2 is a elevational view but on a smaller scale,

butin the same direction as that of Fig. 1, .p

but showing the machine open and ready to be applied for the ixing of the cap. ,Fig

l 3 is an elevation of the machine at right angles to that of Fig. 2,F showing the machine in the same position as that of Fig.l

2, but seated over a glass ready to operate in vthe aixing of the cap to the glass. Fig. 4 is a similar view to that of ig. 3 after -the operation is completed of sealing the cap to the lass.- Fig. 5 is a section on the line 5--5 o Fig. '4. .Fig. 6 is a similar viewto that of Fig. 1 on a cap and glass ready for the operation of sealing the cap'to the glass. Fig. 7 is a section on the line-7-v-7 of Fig. 1. F1g. 8 is a top plan view of the part shown 1n Fig. 4. Fig. 9 is a sectional detail showing the nose of a glass jar with the cap applied ready for the operation of sealing by the machine. Fig. 10 shows the same parts. as that of Fig. 9, but after the sealing operation has been completed. Fig. 11 is an elevational view of the cap sealed to a glass completed as shown in section by Fig. 10, and Fig. 1. This machine is what is known as a hand operated machine and is adapted to be lifted about and placed upon and seal the caps that have been previouslyi arranged onl glass jars or cans on a table and the glasses and the caps are indicated in Figs. 9, 10, and 11.

The caps that have been previously prepared have an outside metal or other suitable material 2, previously prepared lined with paper or other suitable material 3, and seated upon the glass or lcan 1. This cap has a peculiarly shaped flange having a convex but with the machine seated ruffle or bead 4 and a concave ruille or bead 5 and an inturned margin 6, see Fig. 9. i

The machine is provided with a heady block 7 adapted to fit over snugly on the top of the cap 2 as is indicatedby Figs. 1 and 6. This block 7 is fastened in any suitable manner to a central post 8, the fastening here shown being that of a screw 9 shown v in dotted lines in Figs. 1 and 6. Screwed onto the post 8 and clamped in fixed position thereon by a screw 10 through lugs 11 there is a. hinge pin block 12 'provided with the hinge lugs 13 adapted to carry hinge pins 14 which pass through the lower ends of links 15 which are hinged by pins 16 to the bell cranks 17 which are hinged by the pins 18 to the lugs 19 on a block 20 that is mounted to slide verticallv over the central ost 8. Thel sliding block 20 is provided with an additional set of lugs 21 which carry hinge pins 22 that pass through and hold in place in the block 20 the .levervarms 23. Thesearms 23 are fastened by screws 24 to the semi-circular blocks or jaws 25 which operate on the flange or skirt of the cap 2. The semi-circularl blocks or jaws 25 are provided with a working flange or shoulder 26 and ,adjacent thereto there is an undercut groove 27 cut under from the working wall 28 of the blocks.

l To adapt my device for variations in the desired pressure upon' the beads ofthe cap as well as for certain variations in the sizes of the jars and caps, l providemeans for adjusting the block 7 to bring it to the desired distance from the anges 26 at' the completion of the sealing operation. This means for adjustment consists of co-opei'ating'screw threads on the central post 8 and the block 12, the relative rotation of the 'oost 8 carrying with it the block 7. This slitted block 12 is then clamped in the desired position .5 bymeans of thescrew 10.-

To avoid the ,initial cost and care of a. separate machine for each size ofy jars the 100 jaws 25 are made separable from the lever arms 23 to which they are united by' the screws 24 an'd the disk shaped head block 7 is removably secured to the post 8 by the Vscrew 9. When used with jars of different diameters it is only necessary to` substitute for my jaws 25 and head block 7 similar jaws and co-acting blocks of suitable dimensions.

On the top of the centralpost 8 there is fixed a cross-beam 29 which has a snug it fon 1,10

the upper end of the post 8 and is secured tightly thereon by means of a small cap 31 and a screw 32. This cross-beam is slotted at its ends and carries pins 33 supporting small rollers 34. Therollers 34 engage the cam surfaces 35 and 36 of the levers 23 and upon the movement of the block 20 upward and downward on the central post 8 the roll ers 34 cause the outer ends 37 of the levers 23 to move in accordance with the cam tracks 35 and 36 of the said levers. The small tension springs v38 on each side of the machine hold the ends 37 of the levers 23'at all times so that their cam tracks are in Contact with the rollers 34. The bell crank levers 17 are provided with handle members 39 having their outer ends 40 (see Fig. 3) flared outward for convenience in handling the'deviee for the hands of the operator are usually applied at the outer ends of these levers 39 in lthe working of the machine and the flared ends 40 assist in preventing the device from slipping out of the hands of the operator. By working the ends 40 of the levers 39 backward andI forward in relationto each other results in moving the sliding block 2O upward and downward on the post 8 and this results in lopening and shutting the semi-circular blocks or jaws 25 to and from the positions shown in Figs. 1, 2, 3, 4, and 6. The movement of the saidblocks or jaws 25 is influenced by the shape of the cam tracks 35 and 36 in contact with the rollers 34.

The first movement of the levers 23 causes the cam track35 to move the jaws 25 in cirl cular paths above the pivots 22 to laterally enclose the body of the jaras shown in Fig. 1, but not yet in contactfiwith the flange of the cap 2. When the levers 23 have moved upward far enough to cause the cam track 36 vto .contact with the rollers 34 and thereafter the upward movement of the jaws 25 is in'a'vertical line and the shoulder 26 comes in contact vwith the margin 6 of the flange of the cap and compresses it upward causing the change of form of the flange of the cap from'thatof Fig. 9 to that of Fig. 10, which causes, the concave ruffle or bead 5 to be compressed tightly on to the nose of the glass jar or can forming the complete and tight seal ofthe parts together. During this crimping operationof the flange of the cap, the wall 28 of the jaws or blocks 25 holds the outside of the ruffle or bead 4 and margin 6 of the flange of the cap from expanding any further outward and thus forces the metal to flow inward as the flange is crimped up and this inward flow of the metal and lining material seats itself firmly on to the outer wall of the glass jar or can making a `complete and perfect seal of the captothe glass, jar or can.

The movement of the levers for' performing the sealing effect on these caps is very rapidly performed and on release of the levers the jaws 25 disengage themselves and the instrument is freed from theJ jar to be readily applied tthe next one, and so on as to escape coming in contact with the iouter.

wall 42 of the glass, ar or can making the only positive contact of the flange of the cap to be made on the lining material only, not permitting the metal of the cap in actual contact to the glass, jar or can.

In case a cap is used without lining-then of course the metal of the cap will come directly in contact with the walls of the vessel, but in a similar manner in so far as the seal is concerned as when the cap is lined.

What I claim is i 1.- In a device of the class described the combination witha head block'adapted to be seated on the top of a cap mounted on a jar, of a post member fixed in vertical relation to the said head block, detachable means for securing said head block to said post, a cross member fixed to the said post member at the upper region thereof, cam rollers mounted in the ends of said cross member, vertically. arranged lever arms pivotally mounted intermediate their ends and having cam shaped ends at their upper ends adapted to engage the said cam rollers and rovided at their other ends with semicircu ar jaws secured to the said lever arms, detachable means for securing said jaws to the said lever arms, a sliding block mounted to slide on the said post member toward and from the said head block, two bell crank actuating levers symmetrically mounted about the said post member and hinged to the said sliding block, links hinged to said levers, a hingepin block having lugs connected to said links and screw threaded for vertical adjustment on an externally threaded portion of said post and meansfor clamping said hinge pin block to said post.

2. In a machine of the class described` a head block adapted to be seated over a cap upon the top of a jar, a centrally and vertically arranged post, detachable means for securing said head block to said post, a hinge pin block perforated and mounted over the said post and adjustable vertically thereon and provided with clamping lugs, a clampingscrew and oppositely disposed hinge pin lugs, an axially perforated sliding block mounted to slide upon said post above the said hinge pin block and provided with a series of lugs arranged on quadrant spaces,

i two leverfarms oppositely disposed and ver- Ylu tically arranged hinge pins located in the central portions of saidl arms, and supported by one set of the said lugs in the said sliding block, the upper ends of the said lever arms having cam surfaces, a set of crimping jaws, detachable means for securing said jaws to the lower ends of said lever arms; two operating bell crank levers oppositely disposed each hinged to a set of lugs of the said slid ing block and a plurality of links connectin said bell crank levers tothe lugs of the sai hinge pin block, a cross beam mounted across the top end of the said post member and carrying cam rollers adapted to engage the cam ends of the said lever arms.

3. In a device of the 'class described the combination with 'a head block adapted to t over a jar closure, a post member, means for 20 detachably securing said head block to said post member, a cross member rigidly tached to said post at the end opposite to said lhead block, cam engagin members mounted on Ysaid cross member, ever arms having'cam surfaces at theirvupper ends, a l

plurahty of concave jaws, means for detachably securing each of said jaws to one end of a lever arm, a sliding block mounted 'on said post having pivotal bearings for each said lever arms, actuating levers symmetrically mounted on said sllding block, links for l coupling said actuating levers, and an 'axi- SWAN NILsy TEVANDER.

ate of Illinois, this 14th day of March,A 

